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How do you determine what region the electromagnetic spectrum lamda = 8.67x10^-7 m corresponds to : UV , Visible or IR?
A certain weak base has a Kb of 7.80 × 10-7. What concentration of this base will produce a pH of 10.16
A chlorine atom can occupy one of the nine possible sites. When a bromine is added to the system it can occupy one of hte eight sites not already occupied by the chlorine so there are 9 x 8 or 72 possible microstates. What is the change in entropy..
A sample of water in the vapor phase (no liquid present) in a flask of constant volume exerts a pressure of 429 mm Hg at 97 °C. The flask is slowly cooled
you know that a number 8 less than 60 is the number 52. so you could rewrite your answer from the previous part as what
How many grams of Mg2SO4 is required to make up 100mL of 20g/L Mg2SO4 solution in water?
Calculate the concentration of argon in lake water at 20C. if the partial pressure of argon is 0.0090 atm and Henry's constant is 0.0015
1.given that nickelii perchlorate that is a polyatomic ion with the formula clo41- dissolving in water first of all
Two different proteins X and Y are dissolved in aqueous solution at 37 C. The proteins bind in a 1:1 ratio to form XY. A solution that is initially 1.00 mM in each protein is allowed to reach equilibrium. At equilibrium, 0.18 mM of free X and 0.18..
write the molecular formula for given compounds and determine the amount of molecules present.for each of the following
What is the percent hydrogen (H) by weight of a solution containing 53.5 mL of CH3COCH3? The density of acetone is 0.788 g/mL.
N-Phenylmaleimide, can act as a dienophile in the Diels-Alder reaction Draw the structure of the product that would be formed by the treatment of N-phenylmaleimide with
Why does aluminum hydroxide readily dissolve in concentrated NaOH but not in concentrated NH3. Please give a thorough explanation, not just a short answer.
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